/cgi-bin/koha/opac-search.pl?q=ccl=su%3A%22Humus%22&sort_by=relevance&format=rss 3 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=19548 By HOPKINS, Donald P.
London Faber and Faber 1949

]]> Place hold on Chemicals humus and the soil

]]> /cgi-bin/koha/opac-detail.pl?biblionumber=19548 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=64051 By Haines W B.
Journal of the Rubber Research Institute of Malaya 1933 .
14-21

]]> Place hold on Note on the acidity of raw humus in relation to natural covers

]]> /cgi-bin/koha/opac-detail.pl?biblionumber=64051 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=70984 By Haines W B.
Rubber Research Institute of Malaya Quarterly Journal 1929 .
245-249

]]> Place hold on The role of humus in tropical soil management

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